cocos2dx C++一些实用方法

1.获取GUID

const char* newGUID(){     static char buf[64] = { 0 };     GUID guid;     if (S_OK == ::CoCreateGuid(&guid))         {          _snprintf(buf, sizeof(buf)            , "%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X"            , guid.Data1            , guid.Data2            , guid.Data3            , guid.Data4[0], guid.Data4[1]            , guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5]            , guid.Data4[6], guid.Data4[7]            );         }     return (const char*)buf;}

2.获取当前时间戳

std::string getRawTime() {    SYSTEMTIME sysTime;    GetLocalTime(&sysTime);    time_t unixTime;    time(&unixTime);    std::string rawTime = __String::createWithFormat("%ld%ld", unixTime, sysTime.wMilliseconds)->getCString();//输出UNIX时间戳字符串    rawTime.erase(10);    return rawTime;}

3.获取文件时间戳

time_t tt;struct tm *tst;struct stat st;stat("D:\\simple.txt", &st);//必须使用两个'\\'tt = st.st_ctime;log("tt=%ld\n", tt);

4.压缩文件

zip库下载链接 http://download.csdn.net/detail/chinawallace/9584122HZIP hz = CreateZip(L"C:\\simple1.zip",0);ZipAdd(hz, L"simple.txt", L"C:\\simple.txt");CloseZip(hz);

5.获取网络状态

#include <Sensapi.h> #pragma comment(lib, "Sensapi.lib")DWORD flags;IsNetworkAlive(&flags);

6.cocos2dx获取本地数据流

ssize_t size = 0;unsigned char* titlech = FileUtils::getInstance()->getFileData("D:/test.png", "r", &size);          

7.cocos2dx加载网络图片数据流

const char* pSrc = "网络图片数据流";    unsigned char *pData = (unsigned char*)(const_cast<char*>(pSrc));    auto pDataLen = strlen((const char*)pData);    std::string load_str;    load_str = std::string((const char*)pData, pDataLen);    int len = 0;    unsigned char *buffer1;    len = base64Decode((unsigned char*)load_str.c_str(), (unsigned int)load_str.length(), &buffer1);    Image* img = new Image();    bool ok = img->initWithImageData(buffer1, len);    unsigned char *pngData = img->getData();    CCTexture2D *texture = new CCTexture2D();    texture->initWithData(pngData, img->getDataLen(), kCCTexture2DPixelFormat_RGB888,        img->getWidth(), img->getHeight(), CCSizeMake((float)img->getWidth(), (float)img->getHeight()));    sprite->initWithTexture(texture);

8.cocos2dx生成json

#include "json/document.h"#include "json/writer.h"#include "json/stringbuffer.h"#include <iostream>#include "data/HttpConstant.h"using namespace rapidjson;//生成jsonrapidjson::Document m_writedoc;m_writedoc.SetObject();rapidjson::Document::AllocatorType& allocator = m_writedoc.GetAllocator();rapidjson::Value object(rapidjson::kObjectType);m_writedoc.RemoveAllMembers();rapidjson::Value gradeId(rapidjson::kStringType);gradeId.SetString("45014d74cce3469b86ace39cf2025de6", allocator);object.AddMember("gradeId", gradeId, allocator);rapidjson::Value validation(rapidjson::kStringType);validation.SetString("123", allocator);object.AddMember("validation", validation, allocator);StringBuffer buffer;rapidjson::Writer<StringBuffer> writer(buffer);object.Accept(writer);std::string strSendMessage = buffer.GetString();//解析jsonrapidjson::Document writedoc;writedoc.SetObject();rapidjson::Value &value = writedoc.Parse<kParseDefaultFlags>(str.c_str());bool result = value["result"].GetBool();

9.cocos2dx的Http请求

#include "network/HttpClient.h"using namespace network;HttpRequest* request = new (std::nothrow) HttpRequest();request->setUrl("http://192.168.1.7:8080/lesiea/game/drumsData");request->setRequestType(HttpRequest::Type::POST);request->setResponseCallback(CC_CALLBACK_2(CourseSelectClassA1Layer::onHttpRequestCompleted, this));std::vector<std::string> headers;headers.push_back("Content-Type: application/json; charset=utf-8");request->setHeaders(headers);request->setTag("test");HttpClient::getInstance()->send(request);request->release();void onHttpRequestCompleted(cocos2d::network::HttpClient *sender, cocos2d::network::HttpResponse *response){    if (!response)    {        return;    }    long statusCode = response->getResponseCode();    log("response code: %ld", statusCode);    if (statusCode != 200)    {        log("response failed");        log("error buffer: %s", response->getErrorBuffer());            auto layer = TipLayer::create("获取班级二维码失败");        this->addChild(layer, 100, 100);        return;    }    else    {        std::string tag = response->getHttpRequest()->getTag();        std::vector<char> *buffer = response->getResponseData();        std::string str;        for (unsigned int i = 0; i < buffer->size(); i++)        {            str += (*buffer)[i];        }        log("%s", str);    }}

10.随机列表数据

// random generator function:ptrdiff_t myrandom(ptrdiff_t i) { return rand() % i; }// pointer object to it:ptrdiff_t(*p_myrandom)(ptrdiff_t) = myrandom;srand(unsigned(time(NULL)));////s随机数种子// using myrandom:random_shuffle(m_userInfoVector.begin(), m_userInfoVector.end(), p_myrandom);

11.获取网络连接状态

#include <Sensapi.h> #pragma comment(lib, "Sensapi.lib")DWORD  flags;//上网方式   BOOL  m_bOnline=TRUE;//是否在线    m_bOnline=IsNetworkAlive(&flags);    if(m_bOnline)//在线    {       if ((flags & NETWORK_ALIVE_LAN) ==NETWORK_ALIVE_LAN)     {      cout<<"在线：NETWORK_ALIVE_LAN\n";     }   if ((flags & NETWORK_ALIVE_WAN) ==NETWORK_ALIVE_WAN)      {      cout<<"在线：NETWORK_ALIVE_WAN\n";     }     if ((flags & NETWORK_ALIVE_AOL) ==NETWORK_ALIVE_AOL)       {        cout<<"在线：NETWORK_ALIVE_AOL\n";      }    }  else      cout<<"不在线\n";    }  

12.列表随机排序

// random generator function:ptrdiff_t myrandom(ptrdiff_t i) { return rand() % i; }// pointer object to it:ptrdiff_t(*p_myrandom)(ptrdiff_t) = myrandom;srand(unsigned(time(NULL)));////s随机数种子        // using myrandom:        random_shuffle(m_userInfoVector.begin(), m_userInfoVector.end(), p_myrandom);        for (int i = 0; i < m_userInfoVector.size(); i++)        {            m_userInfoVector.at(i)->setIndex(i+1);            m_pHeadVector.at(i)->initWithFile(m_userInfoVector.at(i)->getUserIcon());        }   

13.c++分割子串

std::string tag = "save12";std::string str = "save";if (strstr(tag.c_str(), str.c_str())){    std::string s = tag.substr(4);}

14.读取本地数据流

    ssize_t size = 0;    unsigned char* titlech = FileUtils::getInstance()->getFileData(path, "rb+", &size);    auto pDataLen = strlen((const char*)titlech);    std::string load_str;    load_str = std::string((const char*)titlech, pDataLen);    log("data=%s", load_str.c_str());    std::string load_str;    auto data = FileUtils::getInstance()->getDataFromFile(path);    unsigned char* titlech = data.getBytes();    auto pDataLen = strlen((const char*)titlech);    load_str = std::string((const char*)titlech, pDataLen);    log("data=%s", load_str.c_str());    fstream fsIn;    char s[65535];    fsIn.open(path.c_str(), ios::in | ios::binary);    fsIn.read(s, 65535);    fsIn.close();    char* c = s;    std::string str = c;    log("%s", str.c_str());